September 2018
Intermediate to advanced
928 pages
24h 36m
English
Content preview from Professional Android, 4th Edition
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3Applications and Activities and Fragments, Oh My!
APPLICATIONS, ACTIVITIES, AND FRAGMENTS
Android applications (or simply “apps”) are software programs that are installed and run natively on Android devices. To write high-quality applications, it’s important to understand the components they consist of, and how those components work together. This chapter introduces each of the application components, with special attention paid to Activities and Fragments—the visual components of your application.
In Chapter 2, “Getting Started,” you learned that each Android application runs in a separate process, in its own instance of the Android Run Time. In this chapter, you learn how the Android Run Time manages your application, and the impact this has on the application life cycle. An application’s state determines its priority that, in turn, affects the likelihood of its being terminated when the system requires more resources. You are also introduced to the Activity ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.